Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
hanh vai » hanh vi, hanh va, hanh tai
nam thuc » nam thuoc, am thuc, nam thu
vai cua » dai cua, hai cua, lai cua
hieu ha » hieu hoa, hieu va, hieu ca
sach ky » sach y, sach kem, sach hay
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((((sach ky) OR (sac ky))) or (sach ty)) nang xa hoi. hieu ha nam thuc dang hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((((sach ky) OR (sac ky))) OR (sach ty)) nang xa hoi. hieu ha nam thuc dang hanh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((((sach ky) OR (sac ky))) or (sach ty)) nang xa hoi. hieu ha nam thuc dang hanh vai cua triet*".